74% (1969)

44% (1972)

50% (1969)

69% (1984)

53% (1966)

46% (1967)

61% (1994)

37% (1973)

20% (1982)

44% (1980)

55% (1978)

48% (1982)

55% (1929)

80% (1985)

45% (1974)

23% (1973)

38% (1959)

50% (1958)

38% (1987)

56% (1960)